the teenager had advocated education for girls, and was attacked as she left her school on tuesday. elsewhere in pakistan, officials said a u.s. drone strike killed ten militants near a village in the northwest tribal region. at least 15 others were wounded. a masked gunman in yemen has assassinated a yemeni security official working at the u.s. embassy there. the drive-by shooting happened near the man's home in the capital city sanaa as he headed to work. officials said the attack bore the hallmarks of al qaeda. the victim worked for the embassy for 11 years. yemeni officials said he was investigating a recent assault on the compound. but the u.s. state department said that was not the case. those are some of the day's major stories. now, back to jeff. >> brown: a diplomatic row between russia and turkey has erupted over the grounding of a plane in turkish airspace. margaret warner reports. >> warner: turkish military jets forced the syrian passenger plane to land last night at ankara, after it entered turkish airspace enroute from moscow to damascus today, turkish prime minister